Hawking HWREN15 User Manual page 59

"aaa" can be anything from 000 to 255, or as four cascaded binary
numbers separated by ".": bbbbbbbb.bbbbbbbb.bbbbbbbb.bbbbbbbb,
where each "b" can either be 0 or 1.
A network mask is also a 32-bit binary pattern, and consists of
consecutive leading
1's followed by consecutive trailing 0's, such as
11111111.11111111.11111111.00000000. Therefore sometimes a network
mask can also be described simply as "x" number of leading 1's.
When both are represented side by side in their binary forms, all bits in
the IP address that correspond to 1's in the network mask become part of
the IP network address, and the remaining bits correspond to the host ID.
For example, if the IP address for a device is, in its binary form,
11011001.10110000.10010000.00000111, and if its network mask is,
11111111.11111111.11110000.00000000
It means the device's network address is
11011001.10110000.10010000.00000000, and its host ID is,
00000000.00000000.00000000.00000111. This is a convenient and
efficient method for range extenders to route IP packets to their
destination.
ISP Gateway Address: (see ISP for definition). The ISP Gateway
Address is an IP address for the Internet range extender located at the
ISP's office.
ISP: Internet Service Provider. An ISP is a business that provides
connectivity to the Internet for individuals and other businesses or
organizations.
LAN: Local Area Network. A LAN is a group of computers and devices
connected together in a relatively small area (such as a house or an
office). Your home network is considered a LAN.
MAC Address: MAC stands for Media Access Control. A MAC address
is the hardware address of a device connected to a network. The MAC
address is a unique identifier for a device with an Ethernet interface. It is
comprised of two parts: 3 bytes of data that corresponds to the
Manufacturer ID (unique for each manufacturer), plus 3 bytes that are
often used as the product's serial number.
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